Comparison of Stylosanthes guianensis in degraded mountain Yuanmou of the dry-hot Valley The effects of leaf stoichiochemistric characters on litter turnover in an arid-hot valley of Jinsha River, China Photosynthesis and ChlorophyII Fluorescence Characteristics of Simmondsia chinensis (Link.) Schneider in the Arid-hot Valley of Jinshajiang River, China Scaling relationships and stoichiometry of plant leaf biogenic elements from the arid-hot valley of Jinsha River, China